Compounds that can serve as antigens include proteins and polysaccarides mainly as well as nucleoproteins; includes the cellular capsules, protien coats, cell walls, flagella, and fimbrae.
natural killer cells.
Human intestinal bacterial symbionts serve in the production of Vitamin K.
replacing damaged cells
Surface cells are membrane reactors. They store water and serve as integral membrane proteins. These cells bind other cells to each other.
Carbohydrates
natural killer cells.
Carbohydrates
Carbohydrates
Human intestinal bacterial symbionts serve in the production of Vitamin K.
The four types of organic compounds in organisms are lipids, proteins, carbohydrates, and nucleic acids.
Pili are plasma membrane extensions that serve to allow joining of bacterial cells so that exchange of DNA between cells may occur, thus bringing about sexual reproduction.
acinar cells
replacing damaged cells
They let water flow through the cells.
IgE is a monomeric antibody that accounts for only 0.002 % of the total serum antibodies. Almost all IgE is bound to tissue cells, especially mast cells and eosinophils in various parts of the body. Contact of IgE with antigen leads to release of a set of signal molecules from the mast cells, which effectively recruits various agents of the immune response to fight the infection. IgE and MALT serve to detect penetrating pathogens and amplify the immune response in an area leading to the repulsion of the invader. Antigen reactions with IgE are also responsible for atopic allergic reactions (e.g., hives, asthma, hay fever etc.)
Carbohydrates
Energy